发明人徐明华,唐晓军,李文辉. "Method for the Synthesis of 4-Bromo-5-(chloromethyl)-3-(difluoromethyl)pyridine-2-acetic acid" [P]. 中国发明专利, 专利号 CN 113690037 B, 授权公告日 2015-08-24.
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